Rotary engine.



M. B. HAGA.

ROTARY ENGINE. APPLICATION FILED JULY 1]. 1915. RENEWED SEPT-Z6, I9l1.

Patented Mar. 19, 1918.

2 sHEETS-sHEET I.

3W MBHHGR M. B. HAGA.

ROTARY ENGINE, APPLICATION FILED JULY 11. 1915. RENEWED SEPT. 26. 911.

1,259,857. PatentedMar. 19, 1918.

2- SNEETS-SHEET 2.

gnwntoz M. B. Has/q i 30 haust ports pass, and so construct the rotor UNITED STATES PATENT OFFICE, j

MANDIUS B. HAGA, 0F GARBERVILLE, CALIFORNIA, ASSIGNOR 0F ONE-SIXTH T0 EDWIN 0. JEWETT, ONE-SIXTH T0 JOHN H. JEWETT, AND ONE-SIXTH T0 WILSON WOOD, ALL

' 7 OF HARRIS, CALIFORNIA.

ROTARY ENGINE.

Specification of Letters Patent. Patented Mar. 19, 1918.

it Application med M1717, 1915, Serial No. 40,458." Renewed September 26, 1917. Serial No. 193,388.

To all whom it may co'lwern:

1 Be it knownthat I, Mannros B. I-IAGA, a citizen of the United States, residing at Garberville,-in the county of Humboldt and State of California, have invented certain new and useful Improvements in Rotary I Engines, of which the following is a SpBClficatlon, reference being bad to the accompanying drawings.

This invention relates to rotary engines, and particularly to rotary engines of that type wherein the rotor is provided with blades which are movable radially with rela tion to the rotor and in which the rotor casing is provided with an abutment, the blades being depressed into the rotor to pass said abutment by means of suitable mechanism acting automatically to this end, and again forced out after the blades have passed the abutment. 7 7 i The primary object of the invention is the provision of'a rotary engine of this type, so constructed that the'rotor'may be driven in either direction.

r A further object is to improve upon the details or construction and to simplify the mechanism of such rotary engines, and still 5 another object is to provide a fixed ring dis posed in the middle plane of the rotor,

' Fig. 2 is i 4 is 5L through'which ringthe inlet ports and exthat flanges bear against the side faces of this ring thus permitting the rotor and ring to be packed. evenly, reducing'the friction of the rotor and they ring and very much increasing the efl'ectiveness of. the engine. Other objects will appear in' the course of the following. description,

My. improved rotary engine isillustrated in the accompanying drawings, wherein:

Figure 1 is a side elevation of the rotary engine with one of the side plates and the corresponding flange removed, aportion of the rotor casing being shown as broken y; an end viewof'the engine Fig. 3 is a vertical diagrammaticv section top planview ofthe member 1 Fig. 5 is side elevation of the member 1 i Fig.6 is a section on the linei6l-6 of Fig. 1.

eferring to these dra'wingse it will'be seen that the casing proper of the engine consists of the oppositely disposed plates 2, these plates being fixed and both of the plates being alike. Each of these'plates is preferably formed with an eccentric track or groove 3 whose purpose will be later de- 1 scribed. A shaft 4 passes through the plates 7 and forms the driving shaft upon which the rotor is mounted, and the rotor 5 mounted thereon consists of a medially disposed hub portion 6' having oppositely disposed circumferentially extending flanges 7. These flanges 7 at their edges are inwardly bent or V extended to form flanges 8, theinner faces what elongated heads' 13. These heads are made to conform to the grooves or tracks 31 so as to travel easily around said grooves and be guided thereby.

The grooves 3 are so formed as to cause the projection of these piston blades 10. durring a portion of the rotation of therotor, and

a retraction of these blades upon the re- 7 mainder of the rotation. As illustrated in Fig. 1, each groove 3 is circular for a portion of its length, as from a to I), this por- Y tion a, 2), corresponding to the lower portion of the travel of the piston blade, and being concentric to the shaft ,4. The upper portion of the track, from b to a, is eccentric to the shaft 4 and presents a relatively flattened curve which will act to draw the pis- "ton blade gradually inward untilat the top of the curve or highest point of travel of the piston blade the piston blade will beentirely drawn into the recess 9.

Rigidly connected to the sidewalls 2 of the casing and disposed between the inwardly turned flanges 8 of the ro'ror'is an annulus 14 {having any desired thickness.

annulus and a packing is interposed 'between these flanges and the annulus as will be later described. The exterior edge ofthe The faces of the flanges 8 contact with these annulus 1 L i'scircular andth'e interior face 11 obvious from the above description.

This Jackin member ias a len th e ual to the distance between the members 7 and normally bears yieldingly against the periphery of the rotor. The member 17 is braced at its ends by means 'of bracing members 17. On each side of the recess 16 are formed inlet ports 18 which are connected as by a pipe 19 to a casing of a, rotatable valve 20 so formed that the fluid used to operate the rotor may be directed into one of the ports or into the other of the ports as desired. The annulus 14 is also formed with outlet or exhaust ports 21 disposed dias metrically opposite each other and nearly in line with the shaft- 4. These ports 21 are connected as by means of a pipe 22 to a valve casing 23 and in which is mounted a valve 2d adapted to connect one or the other of the portsQl with the open air or to a muffler (not shown).

The inwardly turnedflanges S of the rotor are formed upon their inner edges with packing recesses within which are ,mounted packing rings 26 which bear against the side-faces of the annulus 14. These packing rings have steam tight engagement with the side faces of the annulus At diametrically opposite points the annulus lat is outwardly extended, as at 27,

to form lugs, these lugs serving asmeans whereby the annulus may be rigidly connected to the casing plates 2 as by means of transverse members 28, these members being illustrated as in the form of plates. Of

course there may be as many of these lugs 27 as desired, though I have illustrated only two. Preferably the flange plates 7 are bolted to the hub portion of the rotor so that theymay'be readily removed, replaced, or tightened up. By tightening up the bolts which these plates are held to the rotor, it is-possib1e to cause the flanges 8 to contact more tightly with-the face of the rotor and thus increase the effectiveness of the packing rings. k

The, operation of my invention willAbe S sumingf that steam or other fluid pressure is being admitted intothe rotor chamber on the left hand side of the abutment 15,1and that-the port- 21 on the right handside of the. rotor: chamber open and: the opposite exhaust port is closed and the inlet port limited to these details.

opposite to the open inlet port is also closed, then it will be obviousthat the fluid pressure admit-ted through the left hand port 18 *ill cause the rotor to move in a counterclockwise direction and that the fluid pressure will continue to act until the piston blade has passed the exhaust port 21' on the right hand side. Then as the blade nears the abutment 15 it will'be gradually forced inward by the eccentricity of the tracks or grooves 3 until when it passes the member 17 the blade will be fully withdrawn and pass beneath said member. Then the blade will be gradually pushed outward again into contact with thefinner face of the annulus 1 and the inwardly extending flanges S, and the steam pressure behind it will'co'na tinue to urge the rotor in a circular path.

.While I have illustrated the side plates 2 as formedfwith tracks 3 for the purpose of withdrawing or projecting the blades 10, I

donot wish to limit myself to this as other means for projecting the blades may be used. In many ways the details of construction may be varied within the scope of the claims without departing fromthe spirit of the invention and therefore I do not wish to be It will be noted that I have provided a rotary engine wherein. only a small portion of the rotor frictionally engages the rotor casing. Thus if other means are provided for retracting and projecting the blades it will not be necessary to use thesideplates of the rotor casing but the annulus will alone be used and thus the rotor would have only a minimum engagement with a non-rotating part. y

Having thus described my invention, what I claim is:

1. In a rotary engine, a rotor, radially movable blades mounted thereon, casing plates disposed oneach side of the rotor, a

fixed annulus surrounding the rotor and having a thickness less than that of the rotor and being rigidly connected to the side plates of the casing, the rotor having-flanges at its side edges overlapping the annulus, the margins of the flanges being inwardly turned to engage against the opposite faces of the annulus and having fiuid tight engagement therewith, said annulus having an abutment at one, portion of its circumference, and extendingacross the'space between the flanges of'th'e rotor, the annulus having an inlet port on one side of the abutment and an outletpor't on the opposite" side of the abutment, and means for retracting the blades as they approach the abutment and its periphery with a plurality of recesses,

blades mounted in said recesses for radial movement, the rotor having flanges extending outward'b'n each side ofthe blades and beyond the blades, said flanges at their edges being inwardly turned, casing plates disposed on each side of the rotor and extending out beyond the periphery thereof, an annulus rigidly connected to said casing plates and disposed between the inwardly extending portions of the rotor flanges and with the inner face of which said blades engage, said annulus beingformed at one portion of its inner surface with an inwardly extending abutment, the abutment being radially recessed, said annulus being less in width than the width of the rotor and blades, a member disposed in the recess of the'annulus and extending transversely thereacross and havmg a width equal to that of V the blades, outlet and inlet ports formed in the annulus at opposite sides of the abutment, and means for causing the retraction of the blades as they near the abutment and the projection of the blades after they pass the abutment. I

3. In a rotary engine, a rotor having radially disposed recesses on its face, radially movable blades mounted in said recesses, blades disposed on each side ofthe rotor and forming part thereof and extending beyond the periphery of the rotor and having inwardly extending margins, the faces of the margins being grooved, packing rings disposed in said grooves, an annulus having a thickness less than that of the rotor disposed between the inwardly turned flanges of the rotor, the inner face of the annulus being formed at one point with an abutment projecting toward the periphery of the rotor, this abutment being recessed, the annulus also being formed with oppositely disposed exhaust ports on each side of the abutment, oppositely disposed casing plates disposed on each side of the rotor and to which the annulus is" rigidly connected, means for in said recesses, an annulus surrounding the rotor and less in thickness than the rotor, said annulus at one point in its periphery being formed with an abutment, the abutment being radially recessed, a member disposed in the recess of the abutment and having a length equal to the thickness of the rotor and thelength of theblades, the plates mounted upon the rotor hub on each side 7 thereof extending outward beyond the pe- V riphery thereof having inwardly extending flanges bearing against and having fluid tight engagement with opposite faces of the annulus, and means for causing the retraction of the blades as they approach the abutment formed on the annulus and the rojection of the blades as they pass said a utment, said annulus being provided with an inlet port on one side of said abutment andan outlet port on the opposite side of said abutment.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

MANDIUS B. HAGA'.

Witnesses;

J. F. MCKNIGHT, E. O. J nwm'r.

' Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latent,

Washington, D. G." V r 

